Friction-clutch.



N5. 822,496. I PATEEYTED JUNE 5, 1906.

E. H. W-AUGH.

FRICTION CLUTCH.

APPLICATION FILED JULY 5. 1904.

2 SHEETS-SHEET 1.

PATEETED JUNE 5, 1906. E. H. WAUGH. FRICTION CLUTCH. APPLIGATION FILED JULY5. 1904.

RATKON OF lLLiNOlS.

(JLlJ T COl iPANY, CO,

S 'RSQSY JQl -PQLUTTEE L li o, 822,496.

Specification of Letters Fatent.

.stenteo. June 5., P305.

Application filed July 5, 1904i. ficrial llo. 215,245.

To nail 1072,0111, i/ may concern.-

Be it known that I, EDWARD H. WAUGH, a citizen ol" the United States, residing at Chicage, in the county of Cook and State of Illinois, have invented a new and useful tion-Clutch, of which the following is a spool iication.

This invention relates to friction-clutches.

The object oi the invention is to provide a construction of fiiction-clutch, and particularly a friction-clutch ofv the coil-spring type, which is simple and efiicient.

"he invention consists, substantially, inthe construction, combination, location, and

arrangement of parts, all as will he more fully hereinafter set forth, as shown in the accompanying drawings, and finally pointed out in the appended claims.

. Referring to the accompanying drawings, and to the various views and reference-signs appearing thereon, Figure l is a view, partly in side elevation and partly in longitudinal section, parts broken off, of a friction-clutch mechanism embodying the principles of my invention and showing the parts locked in clutched relation. 2 is a view similar to Fig. 1, showing a slightly-modified arrangement and the parts in released or unclutched relation. Fig. 3 is a view in transverse section the line 3 of Fig. 1 looking in the di rection. of the arrow Fig. 4 is a detached detail View in section, showing the clutchlatch and the manner of mounting the same.

The same part is designated. by the same reference-sign wherever it occurs throughout the several. views.

Referring to the accompanying drawings, reference-signs O and P designate the shafts to be coupled, one of said shafts being the drivingshait and the other the shaft to be driven. 0f course itwill be understood that it is immaterial which is the driving and Fric B is a coil-spring C, having one end connected or secured to a flange on hub A. The other or free end of the coil carries pin S. A iriction disk or plate .1) is mounted to revolve loosely about the axis of shaft 0. A latchclog Q is carried adjacent the periphery of disk or plate D, a spring H serving to yieldingly press such latch-dog outwardly beyond the peripheral edge of disk or plate D and into the path of coil-pin S. The latch-dog is permitted sliding movement radially with respect to dish or plate D, being held and guided during such movement by a pin T, operating in a radial slot formed. in the stern of'latclbdog On one edge of the latchdog is formed an engaging Wall ()1'SUIf2tCGA The other edge or surface of the latch-dogis beveled, as indicated at E. (Sec Figs. 3 and 4.)

From the foregoing description it will be seen that in. the case Where shaft P is the drivln shaft the hub A and coil C revolve with mail; P, Whereas drum B is keyed or otherwise mounted or secured to rotate with shaft U. During the rotations of shaft P the coil-pin S engages the engaging Wall or surface A of latch-dog Q, thereby rotating said dish or plate D, the latter, as above explained, being mounted to freely rotate about the of shaft Q. If, however, the rotating movement of dish or plate l) is retarded, the coil C will Wind iip on drum B, thereby producing the required friction to impart rotation to such di'uni,'provided the retardation of the free rotation of disk or plate D is sufiicient, and consequently producing rotation of shaft 0. I will therefore now describe a construction end arrangement which have proposed for retarding the i'rcerotative movement of plate or disk D,

in one form oi my invention, selected for purposes of illustration and as shown in the accom an in drawin s i re ose to rcterd ploy a friction dish or'plctc E, srrsnged in coonerative relation Willll respect to frictio 1 late D to he brought into liLtGK'ZlliYdWSJ'EBg cesired .fiictional engagement.- To this end i 53H! surface contact therewith, but normally yieldingly held out oi frictional contect in any convenient nuinner, the said friction disk or piste E oeingdmountecl or comiected to rotote with shaft 6, while, as a cove explained, disk or plate l) is free to revolve or rotate upon the axis of shaft 0. Sleeved upon to rotate with shsft O is a yoke F, which 1 will cell a, toggle iyolre. Pivotelly mounted upon the togglegolre F are a, series of togglelevers G, the points of pivotal connection of said levers upon yoke l being intermediate the ends of sold levers, as cleorlv shown in the drawings. The free ends 0 cl said levers are rounded. or beveled and arranged to be brought into bearing contact with disk or plate E when said lovers are rocked in order to force said disk or lets into bearing frictionel contact with p ate oi: disk D. To the other ends of toggledevers G are pivotolly connected. links H, the other ends of said links being connected to a sliding collar I, mounted u on to rotate with shaft 0, but cepeble of siding longitudinally thereon. A

' strap or ring J is seated in it peripheral groove in collar 1 and efi'orcls through links M means it)! O)8l8,i;1]lg connection between the collar I one the operating-lever N for operating or sliding collar 1 ion itudinolly of shaft 0.

The operation or this port of my invention as follows: When the clutch is disengaged, the ports are in the relative positions thereof shown in Fig. 2. When it is desired to effect coupling of the clutch; operating-lever N is manipulated in c direction to slide collar I toward the left from the position occupied thereby as shown in Fig. 2 and toward the position thereof shown in Fig. 1, such movement being effected from the operating-lever N through the links M, which are connected to strap or r ng J, the'lotter, as above explained, being seated in e peripheral groove in collar 11. This movement of collar 1 eill'ects roclrinn' movement of togglelevcrs G U through the link connections H, the free ends of said toggle-levers G being thereby rocked .or swung in 9. direction to bear against one face Ofillsli or plate E and force the other of said dislr or plate into frictiorml contact with plate or disk D, thereby retarding the rototive movement of said disk or plate D in order, es shove explcined, to wind up the spring 6 upon drum B- to produce the required friction-drive connection between shsits P and The collar l. is permitted s su'fiiicient extent of sliding movement in e direc tion to effect the frictional coupling above explained, so as to carry the links H or the ointso'i pivotal connection. thereof with coler .l and the ends of toggle-levers G, respectively into such relation (as shown in Fig 1) es to och the tog le-levers G in their engagpositions or re etions as shown in Fig. Ti, so test when the clutch is once thrown into operation the perts are held or locked in such relation until the opereting-lever N is again operated or menipu steel to release the clutch engagement.

1 have above stated that disk or piste Eis normally meinteihed out of frictional engagement with disk orplete D. This result may be effected in any convenient nmnner-es, for instenoe,'bv means of studs K, carried b said disk or p ate E and projecting througi the peripheral flange of toggle-yoke F and springs L being interposed between said flange end the needs of seid studs K, the tension of said springs being normally exerted upousaid studs in a direction to move friction disk or )lete E sway from. its cooperetlug late or islr D.

it desrrecl, and in order to secure a (li?-'- able relative adjustment of the drum l3 and toggle-voke F, I may employ no. adjusting sleeve This adjusting-sleeve is screws into the bore of hub 13 and into the bore of toggle-yoke 1*, Whale the plates D and E are sleeved onto sold adjusting-sleeve U freely."

When, therefore, weer takes place between the friction disks or plates D and E or between the toggle levers G and friction-plate E, the to gle-yolre F and yoke I are turned up onto t e threaded end of edjustin -sleeve U or heclced oil, as may be desire or re quired, until the proper adjustment is ob tsined, e set-screw V servin to hold the togv gle-yoke F and sleeve 1 in t ieir adjusted positions oushoft O The object and purpose of the beveled surface B on latch-dog Q are to enable pin to pass by or over the clutch-dog Q when these parts are relatively revolved in the reverse direction from that of s driving com1ection- .ss, for instance, should shaft P be stopped.

and momentum. continue the rotation of shaft 0. in that case the pin S being; we ried in the op osite direction from that 1'- quired for e. riving connection and riding over the inclined surface B of the clutch-dog will force said dog Q radially towerd the center of disk D and e einst the action of spring ll, end hence slosh ng said pin S to pass h sold dog Without danger of unwinding or uncoiling the coil 0.

It will be observed by reference to Fig. 2 thetthe pin S is rigidly connected not onlv to the free end of coil (1, but also to disk or plate D. This construction I propose to employ in cases where the clutch is intended to be operated only occasionally.

it is obvious that the yoke F and sleeve I end adjusting-shovel}, as Well as hub E3, men be mounted and connected to rotate Wit 1 shaft 9 in any convenient mehnerond either independently of each other or by use ceases to be limited or restrietedin respect to the use of the mechanism nor with respect tothe Y and a driven member,

sai

particular construction and arrangement of the parts shown and described, variations and changes in the details of construction and arra'n ement would readily occur to persons skil ed in the art and still fall within the spirit and scope oi my inven tion; but, I I,

Having now set forth the object'and nature'of m invention and a construction embodyingt e rinoi les thereofiwhatlclaimas new and use an of my own invention, and desire to secure by Letters Patent, is-

i. In a friction-clutch the combination of drivin and driven partait coil-s ring connected at one end to one of sai parts and having a free end, a loosely-mounted friction memberfmeans whereby the iree'end of said coil-spring and said friction member engage with each other, a cooperating friction member connected to rotate with one of said driving and driven parts, but capable of move ment longitudinally thereof, and meansfior efi'ecting frictional engagement between said members. i I

2. In a frictiomclutch, a driving and a driven part, a coil-scrimconnected at one on to one of said parts and carryin a pin at its free end, a. loosely-mounted 'ction-disk means carried thereby, against which said pin detachably bears, a cooperating frictionplate connected to rotate with one of said parts biit capable of movement longitudinally thereof, and, a toggle mechanism for eiflecting frictional engagement between said is rs. 3. In, a friction-clutch, a driving member a coil-spring connected at one end to one of" said members and carry ing a pin at the free end thereof, a freelymounted friction-disk, a latch-dog carried thereby and against which said-pin detachabl bears, whereby said disk is rotated with coil, and means for retarding the rotative movement of said disk, comprising a cooperating friction-disk connected to rotate with but capable of movement along the other of said members, and a toggle mechanism for effecting frictional engagement between said disks.

i. In a friction-clutch, a driving and a driven member, a coil-spring connected at one end to one of said members and carryin a pin at its free end, a friction-disk connects to rotate with the other of said members, a

toggle-yoke, toggle-levers connected thereto and having the free ends thereof arranged to engage said disk, means for rocking said levers, and a cooperating friction-disk freely rotatable and carrying a yielding latch-dog for detachable engagement with said pin.

5. In a friction-clutch, a driving member and a driven member, a coil connected at one end to one of said members and carrying a and many .coiled upon said drum end to the other of said shafts, the free end devices and the free end of said spring,

- driven shaft to rotate pin at its free end, a loosely-mounted iriction disk or plate, a yicldingly-mounted latch-dog carried'by said friction-plate and arranged for detachable engagement with said pin, hereby said coil and plate normally revolve in unison, means for retarding the rotation of said plate, including a cooperating friction plate or disk, means for normally maintaining said vdisks or plates yieldingly out of contacting relation, a toggle mechanism for eiiecting frictional engagement between said plates or disks, and means for actuatin said toggle mechanism.

6. In a friction-c utch, a drive shai't and a driven shaft, a drum mounted upon one of said shafts to rotate therewith, a spring and connected at one of said spring carrying a pin, a loosely sleeved friction disk or plate having means against which said pin freely bears, a cooperating friction disk or plate mounted to rotate with said drum, a toggle mechanism for effecting frictional engagement between said disks or plates, and means for operating said toggle mechanism.

7. In a friction-clutch, a driving member and a driven member, a drum 'mounted to rotate with one of said members, a spring coiled upon said drum and connected at one end with the other of said members, a toggle yoke, friction devices interposed between said yoke and drum, toggle-levers carried by said yoke for etlecting frictional engagement between said friction devices, detachable pinand-bolt connections between said friction and means for actuating said toggle-levers.

8. In a-friction-clutch, a driving member and a d iven member, a drum mounted to rotate with one of said members, a spring coiled upon said drum and connected at one end to the other of said members, a toggleyoke,-frictional engaging devices interposed between said yoke anddrum, detachable pin- L. and-bolt connections bet een said friction devices and the free end or said spring, tog' gle-levers carried by said yoke, means for operating said levers to street frictional engagement between for relatively adjusting said yoke and drum, 9. in a friction-clutch, adriving-shaft, hub mounted thereon to rotate therewith, a driven shaft, a drum mounted thereon to rotate therewith, a spring coiled upon said drum and connected at one end to said. hub, a pin in the free end of said spring, a friction disk or plate mounted to freely rotate, a detachable latchsdog yieldingly carried thereby against which said pin bears, a cooperating friction disk or .plate mounted upon sai therewith but capable of movement longitudinally thereof, a yoke sleeved upon said driven shaft to rotate therewith, toggle-levers carried by said yoke,

said devices, and means e. co m? also mountezi noon to rotate with seiti driven elicit, links pivotelly ooiniecting seiri cello: and. levers, and meensior sliding said colier uponsoid. shaft to operate said lieere.

10; in a friction-clutch, e driving port end a part to be driven, e coil-spring connected. at one end to one of said parts and having its other end free, a ioosely-nionnted irictiori n'iernher, means for detecliobly engaging said friction member and the free end of said coilspring a cooperating friction member mount ed to rotate With one or the other of said driving or driven parts, and means for efieeting the frictional engagement of said friction 11. in o friction-clutch, a driving part and a part to be driven, one of said parts pro Vided with a- (lruni, e spring coiled upon said drum and having one end connected to one of said parts and the other end free, a friction member mounted to rotate with the other of said parts, a looselymounted cooperating friction. member, means for detachably enseid iest-mentioi'icrl friction member and t e free end of said coil, end means "for eii ec g the frictional engagement of said friction members.

12. in e friction-dutch, e driving and a driven member, a coil-spring connected at one end to one of said members and heving its other end free, a drum mounted to rotate with the other of said members and upon which said spring is coiled, a friction member mounted to rotate with said drum, or cooperating friction member loosely mounted, moons for detechahiy engaging said looselymoonted friction member onoi the free end of seitl coil, e tog ie-yoke, to gle-levers pivot eliy mounted thereon and eving their free end-s erronged when said leversere rocked to engage the rotating friction member to move the some intoirietional enga ement with the cooperating iooseiy-mounte-- friction memoer, and. meenstor shifting said toggle-yoke.

13, In efricti'omchitch, a Ciniving and a driven member, a coil-sprin connected at one end to-rotete with one 0% said members and having its other end free, e frictiomdisl; mounted to rotate with the other of said. members, but capable oflongitudinel move ment thereon, a, cooperating looeely-mounted: friction-disk, means for deteche-bly engaging said looselyqnounted iriotion cliek with the free end offsei'd spring, and etoggle mechanism for ehzifting eaixi iirstqnentioneri friction-disk: into frictional Surface contact with the looeelymonntod i rietiowdisk.

14. in e friction-clutch, a driving member and e driven member, one of said member-e having" a drum mounted to rotate therewith, e spring coiled. upon acid and connected'et one enrl to the other of said members, and having its other end tree,- meerosfor de tmchebly engaging the free end; oi 's'aiii coiled sprin whereby said: spring.- is' coiled upon said rum to exert a gripping action-thereon, and a friction mechanism for controlling said detachable engaging Intestine. in Witneee whereot Ihevehereunto set my hand, thie 1 st day ofJuiy, 1904,311- the pres once of the subscribing Witnesses.

EDWAFD H. WTAUGH. Witnesses:

RAYMOND W. FAIRFOULL, S. E. DARBY. 

